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1030111212111 = 317611093037789
BaseRepresentation
bin11101111110101110110…
…10011011001001001111
310122110220012222111012020
432333113122123021033
5113334131432241421
62105120534141223
7134265054555312
oct16772732331117
93573805874166
101030111212111
1136795aa19263
121477861b1813
13761a66cb907
1437c01560979
151bbe000bdc6
hexefd769b24f

1030111212111 has 32 divisors (see below), whose sum is σ = 1491676401600. Its totient is φ = 629915719680.

The previous prime is 1030111212103. The next prime is 1030111212121. The reversal of 1030111212111 is 1112121110301.

It is not a de Polignac number, because 1030111212111 - 23 = 1030111212103 is a prime.

It is a super-2 number, since 2×10301112121112 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030111212121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1179796 + ... + 1857993.

It is an arithmetic number, because the mean of its divisors is an integer number (46614887550).

Almost surely, 21030111212111 is an apocalyptic number.

1030111212111 is a deficient number, since it is larger than the sum of its proper divisors (461565189489).

1030111212111 is a wasteful number, since it uses less digits than its factorization.

1030111212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037979.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1030111212111 its reverse (1112121110301), we get a palindrome (2142232322412).

The spelling of 1030111212111 in words is "one trillion, thirty billion, one hundred eleven million, two hundred twelve thousand, one hundred eleven".

Divisors: 1 3 17 51 61 109 183 327 1037 1853 3111 5559 6649 19947 113033 339099 3037789 9113367 51642413 154927239 185305129 331119001 555915387 993357003 3150187193 5629023017 9450561579 16887069051 20198259061 60594777183 343370404037 1030111212111